US 12,268,885 B2
Demand driven capacitor charging for cardiac pacing
Robert T. Sawchuk, Roseville, MN (US)
Assigned to Medtronic, Inc., Minneapolis, MN (US)
Filed by Medtronic, Inc., Minneapolis, MN (US)
Filed on Apr. 17, 2023, as Appl. No. 18/301,956.
Application 17/001,406 is a division of application No. 15/676,066, filed on Aug. 14, 2017, granted, now 10,751,541, issued on Aug. 25, 2020.
Application 18/301,956 is a continuation of application No. 17/001,406, filed on Aug. 24, 2020, granted, now 11,638,828.
Prior Publication US 2023/0248981 A1, Aug. 10, 2023
Int. Cl. A61N 1/368 (2006.01); A61N 1/362 (2006.01); A61N 1/37 (2006.01); A61N 1/39 (2006.01); A61N 1/05 (2006.01); A61N 1/365 (2006.01)
CPC A61N 1/3684 (2013.01) [A61N 1/3621 (2013.01); A61N 1/3706 (2013.01); A61N 1/371 (2013.01); A61N 1/3925 (2013.01); A61N 1/3956 (2013.01); A61N 1/3962 (2013.01); A61N 1/0573 (2013.01); A61N 1/3622 (2013.01); A61N 1/36542 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A medical device comprising:
a therapy delivery circuit comprising:
a holding capacitor; and
a charging circuit configured to charge the holding capacitor to a pacing voltage amplitude; and
a control circuit configured to:
start a first pacing escape interval to schedule a first pacing pulse for delivery by the therapy delivery circuit; and
control the therapy delivery circuit to withhold starting charging of the holding capacitor to the pacing voltage amplitude for at least a portion of the first pacing escape interval;
the therapy delivery circuit further configured to start charging of the holding capacitor to the pacing voltage amplitude by the charging circuit after at least the portion of the first pacing escape interval.